List category posts Can you use a specified cat_id as a filter from a list of cat_ids? (1 post)

I am working on a site where there will be people creating various posts based on family names. For every surname, there will be newsletters, chronicles, and announcements. I'd like to set up this plugin where I could show all posts (so announcements, chronicles, and newsletters) but filter them by the ID of a specific family name.

Is there a "filter by" functionality here? I don't want to show ALL newsletters, chronicles, and announcements - only the ones for a selected family.

I realize i could probably achieve this other ways, but this site is for an elderly group that aren't exactly tech savvy. I want to make it as easy as possible.